Published April 12, 2014 at 12:42 AM Updated April 14, 2014 at 9:47 PM

Since the U.S.-led war began in 2001, nearly 3,500 coalition troops have been killed, along with more than 13,000 Afghan soldiers and police officers. The very first U.S. death was CIA officer Michael Spann.

In late November, 2001, he worked with the Northern Alliance in north Afghanistan, in an effort to drive the Taliban from power and track down public enemy number one: Osama Bin Laden. Spann was at the Qala-i-Jangi fortress, outside the city of Mazar-e-Shariff — being used as a prison, interrogating inmates — when a riot erupted, and Taliban prisoners turned on him. He was buried with honors at Arlington National Cemetery, just outside Washington. And now, 12 years later, CCTV’s Sean Callebs speaks with his daughter to find out how she was dealing with the loss.

Casualties of Afghan War

Since the U.S. led war began in 2001, nearly 3500 coalition troops have been killed, along with more than 13,000 Afghan soldiers and police officers. The very first U.S. death was that of a CIA officer named Michael Spann. And now, 12 years later, CCTV's Sean Callebs speaks with his daughter.

CCTV’s Sean Callebs returned to Washington, D.C., after spending a few days in Afghanistan, covering elections. He talks to CCTV’s Mike Walter on the challenges of reporting from a war zone.

Sean Callebs on Reporting from Afghanistan

CCTV's Sean Callebs returned to Washington, D.C., after spending a few days in Afghanistan, covering elections. He talks to Mike Walter on the challenges of reporting from a war zone.